change:android:Remove map download size limit on modern Android versi…

…ons (#1029)

* Android: Increase map download size limit

* Condition

* Condition #2

* ru

* Condition #3

* Clean up

* Try...

* String

* long->double

* Incorrect version

* Fix comment indent

* 4GiB to 3.8GiB as before

* Simplify expression

* Int

* Make Android version regex more save

* Fix

* Don't crash on strings containing no numeric value

* Revert strings

* Revert string

* Simplify

* Add space and comment

* Skip variable

* CheckStyle

* Simplify

Co-authored-by: jkoan <jkoan@users.noreply.github.com>

navit/android/src/org/navitproject/navit/NavitDownloadSelectMapActivity.java

@@ -27,6 +27,7 @@
 import android.content.pm.PackageManager;
 import android.location.Location;
 import android.location.LocationManager;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Message;
 import android.support.v4.app.ActivityCompat;
@@ -197,7 +198,9 @@ public boolean onChildClick(ExpandableListView parent, View v, int groupPosition
         String mapIndex = child.get("map_index");
         if (mapIndex != null) {
             int mi = Integer.parseInt(mapIndex);
-            if (NavitMapDownloader.osm_maps[mi].mEstSizeBytes / 1024 / 1024 / 950 >= 4) {
+            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N
+                    && NavitMapDownloader.osm_maps[mi].mEstSizeBytes >= Math.pow(2, 32) * 0.95) {
+                // limit map download size to 3.8GiB on Android versions before Nougat
                 NavitDialogs.sendDialogMessage(NavitDialogs.MSG_TOAST_LONG, null,
                         getTstring(R.string.map_download_oversize),
                         -1, 0, 0);